<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="test"></div>

    <!-- 引入react核心库 -->
    <script type="text/javascript" src="../js/react.development.js"></script>
    <!-- 引入react-dom，用于支持react操作DOM -->
    <script type="text/javascript" src="../js/react-dom.development.js"></script>
    <!-- 引入babel，用于将jsx转为js -->
    <script type="text/javascript" src="../js/babel.min.js"></script>

    <script type="text/babel">
        class Weather extends React.Component{
            state = {isHot:true}

            changeWeather = ()=>{
                this.setState({
                    isHot:!this.state.isHot,
                })
            }

            render() {
                const {isHot} = this.state;
                return (
                    <h1 onClick={this.changeWeather}>今天天气很{isHot ? '炎热':'凉爽'}</h1>
                )
            }
            
        }
        ReactDOM.render(<Weather/>,document.getElementById('test'))
    </script>
    
</body>
</html>